One glance at this creature and you’ll wonder whether you’re looking at a sea monster. After all, it has large eyes and an even larger mouth that takes up most of its head. Worse, its mouth has long, sharp, glass-like teeth. Some of its teeth are so long they have to curve backward in order for the viperfish to close its mouth. With these teeth, it is no wonder the viperfish is a fierce predator in the ocean depths, luring prey by turning the lights along its spine on and off, and then snagging its prey with one powerful bite, chasing after it if necessary.